"Autumnal Equinox" The autumnal equinox is at ecliptic longitude 180° and at right ascension 12h. In the southern hemisphere, the autumnal equinox corresponds to the center of the Sun crossing the celestial equator moving northward and occur... http://whatishot.site88.net/interestin...

"Autumnal Equinox" At the autumnal equinox , the Sun appears to cross the celestial equator, from north to south; this marks the beginning of autumn in the Northern Hemisphere. The autumnal equinox is at ecliptic longitude 180° and at right as... http://whatishot.site88.net/updated-in...

Top501 World: Autumnal Equinox posted at Articles.Top501.nu - More! Videos! Autumnal Equinox   The autumnal equinox is at ecliptic longitude 180" and at right ascension 12h.   The traditional East Asian calendars divide ... http://articles.top501.nu/2008/09/21/t...